389946064

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{643}}^1\times {\mathrm{1307}}^1$

素因数の和:1987

約数の個数: 40

約数和(自身を含む): 783387360

約数和(自身を除く): 393441296

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 643, 1286, 1307, 2572, 2614, 5144, 5228, 10288, 10456, 18647, 20912, 37294, 37903, 74588, 75806, 149176, 151612, 298352, 303224, 606448, 840401, 1680802, 3361604, 6723208, 13446416, 24371629, 48743258, 97486516, 194973032, 389946064]

約数ペア:

[(1, 389946064), (2, 194973032), (4, 97486516), (8, 48743258), (16, 24371629), (29, 13446416), (58, 6723208), (116, 3361604), (232, 1680802), (464, 840401), (643, 606448), (1286, 303224), (1307, 298352), (2572, 151612), (2614, 149176), (5144, 75806), (5228, 74588), (10288, 37903), (10456, 37294), (18647, 20912)]